Connection for locomotive drifting-valves.



A. G. ELVIN & J. L. MOHUN.

CONNECTION FOR LOCOMOTIVE DRIFTING VALVES.

APPLlCATION FILED JAN.15. 1914.

1L 9 1&1 y 1 1 1 Pawnted June 1, 1915.

ENVENTOHS "ing valve should be positively closed in embodying our improvement Specification of Letters Patent. Application filed January 15, 1914,. Serial Ito. 812,258.

To all whom it may concern Be it known that we, ALBERT G. ELVIN and JOHN L. MOHUN, both citizens of the United States, and residents, respectively, of Somerville, in the county of Somerset and State of New Jersey, and of the borough of Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Connections for Locomotive Drifting-Valves, of which improvement the following is a specification.

This invention relates to means'for con meeting up the supply of steam for a locomotive drifting valve, and While it may be employed with various forms of drifting valves, it is particularly adapted for use in connection with that type of drifting valve which may be of any desired erates to supply a with the throttle'closed.

engine lubricator,

supplies steam from the lubricator for tainsa hand operated valve, 8 off the l'ubricatonwhen The valve or cook, 8, also contr 11, of the pressure operated va shown particularly in Fi 3, nected directly to the dri ting 1913, in which the valve is operated by the locomotive reverse gear.

When the locomotive is brought into the round house, the steam supply for the driftmumcation' from the turret through chamber, 15, to pipe, valve is seated. e diaphra rates the chambers, valve, normally supported by the valve, 14,

fluid pressures in said chamb sides of th equal. When the the road, the valve, open, and the steam to the chamber, 11, bal chamber, 15, so that the valve, 14, off its communication from pipes, t" and 4, to the order to prevent any possibility of inadvertently admitting a suflicient amount of steam. through the same to the engine cylinders to start the engine, and the object of our invention is to connect up the supply of steam for the drifting valve with some other auxiliary device upon the locomotive, such as the engine lubricator, having a manually operated member which must always be adjusted to a given position when the locomotive enters the round house, whereby the manual adjustment of said member shall also operate to positively cut oil the supply of steam for the driftingvalve.

he improvement claimed is hereinafter fully set forth.

In the accompanying drawings: Figure 1 of a portion of a locomodiaphragm are seat and is a side elevation tive, and illustrating one form of apparatus Fig. 2, a similar view showing a slightmodification; Fig. 3, vertical section of the ressure operated cutting en operates to the modification shown in Fig. 2.

ccording to the construction shown in the drawing, a pipe supplies steam from the boiler turret, 5, for the drifting valve, 1,

and the locomotive due to inadvert of steam through the driftinghouse, and as shown in Fig. 1, th

and contains the valve, 14, for closm 11 and 15, the 14, resting upon the diaphragm and by the spring, 13, whereremains open when the ers on opposite chamber,

Patented June 1, 1915..

type, and opsmall amount of steani to the engine when the locomotive is running There are other auxiliary devices upon the locomotive, 6, which must position, when various boiler turret to the operating the same,

and confor shutting the locomotive is not In use, as when it occupies the round house.

ols the supply of steam to the plpe, 9, and to the'chamber,'

lve device, 10, which is convalve pipe, 4,

g comand ipe, 1 4, w on sai p substantially locomotive is in operation upon the lubricator is pressure thus admitted.

there is free the turret through drifting valve which t en operates according to its usual func- When the locomotive is the round house, the lubricator valve, 8, is

brought into oil the supply 11, beneath pressure acting on the diaphragm l.

compress the causes the closing of valve, 14, upon its seat, thereby positively cutting off all supply of steam to 'the drifting valve preventing any accidental starting of out admission valve.

stem or ances the pressure in 4 the spring, 13, holds "drifting valve will also be shut off by the same movement which closes the lubricator p yy means of our improvement, it will now be apparent, all additional care or attention which might otherwise be required to close an extra valve in the drifting valve supply each and every time a locomotive was brought into the round house, is eliminated, and a double safety feature is thus provided, which may be relied upon to prevent any accidents of the character above referred to.

Having now described our invention, what we claim as new and desire to secure by Letters Patent 18 1. The combination 1n a locomotive, of a drifting valve for supplying a limited quan- .tity of steam to the engine when running with thr'ottle closed, an auxiliary device ing amanually operated member adapted to be set to a certain required position, and means controlled by saidmanually operated member for cutting 01? the supply of steam for said drifting valve. v

2. The combination in a locomotive, of a drifting valve for supplying a limited quantity of steam to the engine when running with throttle closed, a'steam operated lubrieating device for the engine, a hand valve for closing the supply of steam to the lubricator, and means controlled by said hand valve for cutting oil the supply ofsteamfor the driftin g valve.

:3. The combination in a locomotive, of a drifting valve for supplying a limited quantity of steam to the engine when running with throttle closed, a fluid pressure actuated valve for controlling the supply of steam for the drifting valve, a steam operated lubricating device for the engine, and a hand valve controlling the supply of steam to the lubricator and to said pressure actuated valve.

In testimony whereof we have hereunto set our hands.

ALBERT G. ELVIN. JOHN L. MOI-IUN.

Witnesses C. DEVINEY, O. E. Fnonmn. 

